Demopolis, AL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Demopolis, a city in Marengo County, Alabama.
Tonight
64°F
Rain Showers
Rain showers. Cloudy, with a low around 64. Southeast wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Demopolis
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 64°F | Rain Showers | 5 mph SE | 76% |
| Wednesday | 79°F | Showers And Thunderstorms | 0 to 5 mph SW | 78% |
| Wednesday Night | 53°F | Mostly Cloudy | 0 mph | 14% |
| Thursday | 78°F | Mostly Sunny | 0 mph | 3% |
| Thursday Night | 50°F | Partly Cloudy | 0 mph | 4% |
| Friday | 77°F | Mostly Sunny | 0 to 10 mph NW | 4% |
| Friday Night | 44°F | Mostly Clear | 5 mph N | 1% |
| Saturday | 70°F | Mostly Sunny | 5 to 10 mph N | 1% |
| Saturday Night | 38°F | Partly Cloudy | 0 to 5 mph N | 4% |
| Sunday | 67°F | Mostly Sunny | 5 to 10 mph N | 8% |
| Sunday Night | 36°F | Mostly Clear then Patchy Frost | 0 to 5 mph NW | 5% |
| Monday | 69°F | Patchy Frost then Sunny | 5 mph N | 1% |
| Monday Night | 35°F | Clear then Patchy Frost | 0 to 5 mph N | 0% |
| Tuesday | 72°F | Sunny | 0 to 5 mph NW | 3% |
Forecast source: National Weather Service (api.weather.gov) for Demopolis (32.500, -87.827). Updated through the day.
Growing snapshot for Demopolis
Last spring frost
Mar 16
First fall frost
Nov 14
Growing season
241 days
Hardiness zone
8b
More local growing data for Demopolis: nearby ZIP 36742 weather · frost dates · planting calendar · Alabama frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Demopolis L&D, Al (8.6 mi from Demopolis). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.